Describe global temperature cahnge over time

It's getting hotter

Since 1976, every year including 2015 has had an average global temperature warmer than the long-term average. Over this 38-year period, temperature warmed at an average of 0.50 °F (0.28 °C) per decade over land and 0.22 °F (0.12 °C) per decade over the ocean.""